The Water Quality Characteristics And Genetic Analysis Of The Natural Mineral Water For Drinking In Shijiazhuang

Drinking natural mineral water are widely distributed in Shijiazhuang city and the surrounding areas.Strontium and metasilicic acid in groundwater are standard in single or double standard.But a large number of valuable mineral resources are used in industry,agriculture and so on,failed to achieve optimal use.The thesis mainly aims at the occurrence characteristics,groundwater rechange,runoff and discharge conditions,water dept and dynamic characteristics,the hydrochemical characteristics and cause analysis in quaternary shallow water and deep water.Making the study on the distribution,formation,migration and enrichment regularity and other water chemical characteristics for strontium and metasilicic acid on the study area.providing a scientific basis for the development and protection in drinking natural mineral water resources,guaranteeing the abundant mineral resources can be sustainable used.This research mainly adopts collecting and analyzing the existing data in the study area and field investigation,collecting water samples,the water quality test,field experiment and indoor data analysis.Through the analysis of original data and the deep,shallow groundwater water level and buried depth partition graph drawing in the study area,we can find that the recharge source of shallow groundwater in this area are mainly atmospheric precipitation and surface water infiltration,in addition to accept replenishment by the lateral flow.Artificial mining and lateral runoff are the main way of discharge,the dynamic type is rainfall infiltration-mining,seasonal variation is obvious.The lateral flow is the main recharge sources for deep groundwater in the study area.Dynamic type is lateral supplies-mining,and the seasonal variation is also obvious by the influence of regional underground water level dynamic.In addition,analysising and summaring the water quality test results in the study area,and draw the types of deep,shallow water chemistry and strontium and metasilicic acid contour map and hydrochemistry profile in the study area,,we can see,quaternary shallow water quality types in this area have obvious zoning characteristics,from north to south is divided into a number of long and narrow strip of water quality types.Because of situating in the different parts of the alluvial-proluvial fan and affected by the concentrated exploit of groundwater,groundwater runoff are obvious differences and strontium content are changed regularly.From northwest to southeast along the groundwater flow,the shaft to the two wings of the fan and the leading edge,strontiumcontent increases gradually,metasilicic acid content also showed the same as the content of strontium basic change trend.Deep water shows the same rule with the shallow groundwater in the study area.The deep groundwater various conventional ion content,salinity change rule,the hydrochemistry type,content of strontium and metasilicic acid have the same change rule,are along the central axis distributing low-value belt and the northeast,southwest sides gradually increased.The mineral water in the aera is rich in strontium and metasilicic acid,strontium and metasilicic acid concentration is mainly encountered in the process of groundwater in the migration of soluble rocks containing strontium and metasilicic acid,under certain conditions such as temperature,runoff and the environment,complicated earth physics and chemistry,and leached from aquifer medium,replacement form other ion.Besides other ions in groundwater has also have effect on the content of strontium and metasilicic acid.The more free CO₂ content in groundwater,the higher the content of strontium in underground water;With the content of HCO₃^-,SO₄^2-increasing,and the increase of total soluble solid,strontium content are also gradually increase;Content of strontium in underground water will be restricted by Ca²⁺and K⁺;Weak alkali conditions,SiO₂ is solubled in water,favorable for the formation of metasilicic acid;The older the groundwater formation time,more conducive to metasilicate enrichment.Regional water resources was calculated.Calculate area of shallow groundwater storage capacity is 1.337 billion m³,deep groundwater storage capacity is 455 million m³.The mining of shallow water resources is 21.329 million m³/a,mining resources in deep water is 83.9708 million m³/a.